Amana GMSS9 Series Service Instructions Manual page 25

INSTALLATION CONSIDERATIONS
D
O NOT OPERATE THE FURNACE WITH THE RAIN CAP REMOVED AS
RECIRUCLATION OF THE FLUE GASES MAY OCCUR.
COLLECT INSIDE THE LARGER COMBUSTIN AIR PIPE AND FLOW TO THE
F
BURNER ENCLOSURE. AILURE TO FOLLOW THIS WARNING CAN RESULT IN
PROPERTY DAMAGE, EQUIPMENT DAMAGE, PERSONAL INJURY OR DEATH.
Concentric Sidewall Vent Kit (0170K00000S)
This (sidewall only) vent kit is to be used with 2" - 3" vent
systems. The vent kit must terminate outside the structure
and may be installed with the intake and exhaust pipes lo-
cated side-by side or with one pipe above the other. This kit
is NOT intended for use with single pipe (non-direct vent)
installations.
Condensate Drain Lines and Drain Trap
A condensing gas furnace achieves its high level of efficiency
by extracting almost all of the heat from the products of
combustion and cooling them to the point where condensa-
tion takes place. The condensate which is generated must
be piped to an appropriate drain location.
I
N UPRIGHT UPFLOW INSTALLATIONS, THE DRAIN TRAP MUST BE MOUNTED ON
THE OPPOSITE SIDE OF THE UNIT FROM THE JUNCTION BOX.
REDUCE THE RISK OF WATER REACHING THE JUNCTION BOX IN THE EVENT OF
F
A BLOCKED DRAIN CONDITION.
CAN RESULT IN POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH
DUE TO ELECTRICAL SHOCK.
• If the drain line is routed through an area which may
see temperatures near or below freezing, precau-
tions must be taken to prevent condensate from
freezing within the drain line.
• If an air conditioning coil is installed with the
furnace, a common drain may be used. An open
tee must be installed in the drain line, near the
cooling coil, to relieve positive air pressure from the
coil's plenum. This is necessary to prohibit any
interference with the function of the furnace's drain
trap.
WARNING
W
ATER MAY ALSO
WARNING
T
HIS WILL
AILURE TO FOLLOW THESE INSTRUCTIONS
Drain Information for Horizontal Installations
NOTE: Horizontal installations require 5.5" under the fur-
nace to accommodate the drain trap. The horizontal furnace
must be installed with ¾" slope from back to front to permit
condensate flow towards the front of the furnace.
When installing a *MSS9* horizontally with the left side
down, there are two options for connecting the vent pipe to
the furnace.
Option 1
Venting may be connected to the furnace vent pipe fitting on
the original top (now the end) of the furnace.
Option 2
The internal vent pipe and elbow may be removed from the
furnace to permit the vent to exit the top (original side) of the
furnace. If this option is used, an RF000142 Vent-Drain cou-
pling must be used to keep condensate from collecting in
the inducer assembly.
To install the drain, refer to the following instructions and
illustration.
1. Remove screws from vent flange.
2. Remove internal elbow and vent pipe.
3. Cut pipe 2 1/2" from flange.
4. Remove cabinet plug adjacent to inducer outlet and in-
stall an original cabinet vent hole.
5. Install RF000142 coupling on inducer outlet.
6. Install flanged vent section removed in step 2 and se-
cure with clamps.
7. Secure flange to cabinet using screws removed in
step 1.
Insert flange. Cut 2 ½" long.
R 000142 F
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